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Geforce GTX 690 vs Geforce GTX 770

Intro

The Geforce GTX 690 uses a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 RAM works at a speed of 1502 MHz on this specific model. It features 1536 SPUs along with 128 TAUs and 32 ROPs.

Compare those specifications to the Geforce GTX 770, which has GPU core speed of 1046 MHz, and 2048 MB of GDDR5 memory running at 1753 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770 230 Watts
Geforce GTX 690 300 Watts
Difference: 70 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 690 should be a lot faster than the Geforce GTX 770 overall. (explain)

Geforce GTX 690 384512 MB/sec
Geforce GTX 770 224384 MB/sec
Difference: 160128 (71%)

Texel Rate

The Geforce GTX 690 will be quite a bit (approximately 75%) better at texture filtering than the Geforce GTX 770. (explain)

Geforce GTX 690 234240 Mtexels/sec
Geforce GTX 770 133888 Mtexels/sec
Difference: 100352 (75%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 690 is superior to the Geforce GTX 770, by far. (explain)

Geforce GTX 690 58560 Mpixels/sec
Geforce GTX 770 33472 Mpixels/sec
Difference: 25088 (75%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Geforce GTX 690

Geforce GTX 770

Specifications

Display Specifications

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Model Geforce GTX 690 Geforce GTX 770
Manufacturer nVidia nVidia
Year April 2012 May 2013
Code Name GK104 GK104
Memory 2048 MB (x2) 2048 MB
Core Speed 915 MHz (x2) 1046 MHz
Memory Speed 6008 MHz (x2) 7012 MHz
Power (Max TDP) 300 watts 230 watts
Bandwidth 384512 MB/sec 224384 MB/sec
Texel Rate 234240 Mtexels/sec 133888 Mtexels/sec
Pixel Rate 58560 Mpixels/sec 33472 Mpixels/sec
Unified Shaders 1536 (x2) 1536
Texture Mapping Units 128 (x2) 128
Render Output Units 32 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Geforce GTX 690

Geforce GTX 770

Comments

2 Responses to “Geforce GTX 690 vs Geforce GTX 770”
Anonymous says:

If only I had more info...

Nigga says:

Nigga nigga nigga, you're 100% nigga

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